Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/242572
Type: Artigo de periódico
Title: Solid Lipid Microparticles Of Hardfats Produced By Spray Cooling As Promising Crystallization Modifiers In Lipid Systems
Author: Lopes
Julice Dutra; Ferreira Grosso
Carlos Raimundo; Calligaris
Guilherme de Andrade; Cardoso
Lisandro Pavie; Basso
Rodrigo Correa; Badan Ribeiro
Ana Paula; Efraim
Priscilla
Abstract: Spray cooling (SC) is a simple and quick technique without the use of solvents that can be applied for the production of microparticles of different materials with diameters in the micrometer range. In this work, the SC technique was evaluated to obtain solid lipid microparticles (SLMs) of fully hydrogenated vegetable oils (hardfats) of soybean, cottonseed, palm, and crambe. SLMs were produced using a laboratory-scale SC, varying the temperature of the hardfat (70-85 degrees C), SLM solidification temperature (0 and 24 degrees C), nozzle diameter (0.7-1 mm), and air pressure (1.25-1.75 kgf/cm(2)). The melting point and preferential polymorphisms of the soybean, cottonseed, palm, and crambe hardfats were, respectively, 69.5 degrees C (beta), 63.2 degrees C (beta'), 60.4 degrees C (beta'), and 73.8 degrees C (beta' + beta). The analysis of the morphology and particle size distribution showed that all SLMs had a spherical shape, with mean diameters ranging from 60.15 to 2013.99 mu m (soybean), 101.25 to 302.85 mu m (cottonseed), 56.12 to 2514.32 mu m (palm), and 66.10 to 877.93 mu m (crambe), depending on the process conditions. It was verified that the atomization process changed the polymorphic habit of all hardfats to the alpha form. These results indicate that the SC technique may be applied to obtain SLMs of hardfats. Practical applications: Solid lipid microparticles, which are composed of fully hydrogenated vegetable oils and obtained by the spray cooling technique, have the potential to modulate or optimize conventional fat crystallization processes for several different industrial purposes.
Subject: Polymorphic Behavior
Controlled-release
Chilling Method
Drug-delivery
Cocoa Butter
Microencapsulation
Nanoparticles
Encapsulation
Components
Particles
Country: HOBOKEN
Editor: WILEY-BLACKWELL
Citation: Solid Lipid Microparticles Of Hardfats Produced By Spray Cooling As Promising Crystallization Modifiers In Lipid Systems. Wiley-blackwell, v. 117, p. 1733-1744 NOV-2015.
Rights: fechado
Identifier DOI: 10.1002/ejlt.201400560
Address: http://onlinelibrary.wiley.com/doi/10.1002/ejlt.201500560/epdf
Date Issue: 2015
Appears in Collections:Unicamp - Artigos e Outros Documentos

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